Patents
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F01 - Machines or engines in general; Engine plants in general; Steam engines
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F01B - Machines or engines, in general or of positive-displacement type, e.g. steam engines
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F01B 29 - Machines or engines with pertinent characteristics other than those provided for in main groups
Patents for F01B 29 - Machines or engines with pertinent characteristics other than those provided for in main groups (1,501)
04/1976
04/27/1976
US3952399
Uniting two elements
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