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| Patents for James Parnell Trust Slade | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-190,817,999 | Aug. 27, 1909 | J.P. Slade, T.B. Burton | Improvements in mechanism for operating friction clutches | horizontal boring mills | |
| GB-190,909,430 | Apr. 21, 1910 | J.P. Slade, T.B. Burton | Improvements in or applicable to feed and reversing motions of reciprocating tools | metal shapers | |