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| All Patents in class 198/832.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,420,941 | Jun. 27, 1922 | H.B. Palmer | Clamp machine | clamping machines | |
| 2,321,644 | Jun. 15, 1943 | E.J. Billstrom, A.W. Redin | Glue clamp carrier | clamp carriers | |
| 4,318,465 | Mar. 09, 1982 | C.P. Shinkle, J.W. Calvert | Indexing Drive Control | workpiece changers and storage mechanisms | |