Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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B21J
FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
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B21J15/16
Drives for riveting machines; Transmission means therefor
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B21J15/20
operated by hydraulic or liquid pressure
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B21J15/205
Riveting tools having hand operated pumps for building up the hydraulic pressure
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