Title: |
1871 Ad-Philip S. Justice, Dead Stroke Power Hammer & Philadelphia Hydraulic Jack |
Source: |
The Railroad Gazette, V3, 05 Aug., 1871, pg. VIII |
Insert Date: |
10/6/2022 8:49:56 PM |
US Patent: 52,894 https://www.datamp.org/patents/displayPatent.php?number=52894&typeCode=0 |
|
1871 Philip S. Justice, Dead Stroke Power Hammer & Philadelphia Hydraulic Jack
|
|