| All Patents in class 192/107R | 
| Patents 1 - 
					15
					of 18 
       | 
| Number | Date | Patentee | Title | Type | 
| RE9,806 | Jul. 19, 1881 | J. Knowlson, Jr. | Rope-drum for windlasses | hoists, winches, come-alongs | 
| 260,791 | Jul. 11, 1882 | W. Sellers | Friction Clutch | clutches | 
| 277,066 | May 08, 1883 | G.N. Schoenberg | Friction Clutch | industrial machine clutches | 
| 403,739 | May 21, 1889 | H.C. Crowell | Friction Clutch | industrial machine clutches | 
| 658,444 | Sep. 25, 1900 | C.W. Hunt | Friction Wheel | metalworking power transmission | 
| 843,076 | Feb. 05, 1907 | J.S. Detrick | Clutch Operating Mechanism | industrial machine clutches | 
| 909,768 | Jan. 12, 1909 | F. Donaldson | Winding-drum | hoists, winches, come-alongs | 
| 1,043,406 | Nov. 05, 1912 | R.J. Denio | Clutch | automobiles | 
| 1,293,552 | Feb. 04, 1919 | A.M. Sosa, A.E. Robinson | Clutch | metalworking machine clutches | 
| 1,567,717 | Dec. 29, 1925 | P. Dubosclard | Friction device | industrial machine clutches | 
| 1,665,554 | Apr. 10, 1928 | G.F. Kolb | Clutch |  | 
| 1,699,968 | Jan. 22, 1929 | E.J. Hornberger | Friction Clutch | metalworking machine mechanisms | 
| 1,987,194 | Jan. 08, 1935 | F.S. Kingston | Clutch | industrial machine clutches | 
| 1,988,967 | Jan. 22, 1935 | G.W. Emrick | Clutch device | tapping heads and chucks | 
| 2,045,452 | Jun. 23, 1936 | G.W. Emrick | Clutch | tapping heads and chucks |