Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.

Error 404--Not Found

Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.

Tools of the Trade

February 2002
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Multi-wing fans

Crowley Co.'s multi-wing aluminum H&Z Series fans feature an airfoil blade design that produces a combination of high air volume, low power consumption, and low noise. Hubs and blades are made of die cast aluminum, providing strong, light-weight, corrosion-resistant performance in a range of applications.

Two-gas mixer

Smith Equipment Co.'s high-capacity two-gas mixer with a 42-L (11-gal) surge tank is primarily used for mixing welding shield gases. The unit is suitable for liquid cryogas applications and delivers precisely mixed gases accurate within 1.5% at up to 1100 scfh. Since the mixer is a mechanical system, it requires no electrical hookup, no electrical service or special wiring, and it eliminates the possibility of electrical component failure. In addition, it is less susceptible to environmental factors and is not affected by power supply interruptions.

Battery-operated analyzer

The Soot Chek from Wilks Enterprise is a handheld, battery-operated diagnostic tool that measures soot concentration levels in diesel engine lubricating oils. This analyzer is designed for fleet operators, transit authorities, construction sites, and preventive maintenance personnel. It enables users to know exactly when to change the lubricating oil.

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Error 404--Not Found

Error 404--Not Found

From RFC 2068 Hypertext Transfer Protocol -- HTTP/1.1:

10.4.5 404 Not Found

The server has not found anything matching the Request-URI. No indication is given of whether the condition is temporary or permanent.

If the server does not wish to make this information available to the client, the status code 403 (Forbidden) can be used instead. The 410 (Gone) status code SHOULD be used if the server knows, through some internally configurable mechanism, that an old resource is permanently unavailable and has no forwarding address.