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| All Patents in class 123/142.5R | |||||
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| Number | Date | Patentee | Title | Type | |
| 414,173 | Oct. 29, 1889 | E. Stevens | Combined Gas and Compressed Air Engine | ||
| 1,575,735 | Mar. 09, 1926 | J.J. Van Hamersveld, E.P. Burrell | Way Guard for Machine Tools | metalworking machine mechanisms | |