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Patents for Ernest A. Walker
Patents 1 - 3 of 3
First set of recordsLast set of records
1,835,733Dec. 08, 1931H.M. Allison, E.A. WalkerBacking Off Mechanism for Grinding Machinesgrinding attachments
1,854,242Apr. 19, 1932E.A. Walker, H.M. AllisonMachine for Measuring Tapsmeasurement gauges
1,854,244Apr. 19, 1932E.A. Walker, H.M. AllisonMachine for Measuring Two-Fluted Tapsmeasuring tools
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