"A determined soul will do more with a rusty monkey wrench than a loafer will accomplish with all the tools in a machine shop." - Robert Hughes
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<snip>. DATAMP says it was not made. </snip>Link to AA article below. http://alloy-artifacts.org/billings-spencer-company.htmlDATAMP entry defaults to "NOT KNOWN ... " unless the data steward composing the entry can supply manufacturer / maker information. As one of the data stewards, I've entered many patents into DATAMP that fit my area of interest without knowing if they were produced or not. If I'm lucky, someone will know more about that patent than I, and will use the contact link to get in touch with me. I currently have an ongoing exchange with someone who knows a whole lot about the evolution of one brand of ratchet wrenches & will supply me with enough detail to get that run of DATAMP entries filled out. In the mean time, several patents show "not known ... " - Regards, Stan Schulz, DATAMP data steward.Mike