| 1934 FARMER Brake Shoe Clearance Adjuster Patent |
| 1951 PRITCHARD DONALD Slack Adjuster Patent |
| 1958 DOREY Brake Slack Adjuster Patent Print Art |
| 1919 ROWE Book Pad Adjuster Patent 13160 |
| 1894 SHEPPARD Lighting Adjuster Patent 9687 |
| 1931 MARTIN WILLIAM Slack Adjuster Patent Print |
| 1922 MCARTHUR Brake Rod Adjuster Patent Print |
| 1938 GEN MOTORS CORP Brake Slack Adjuster Patent |
| 1853 DAY Arm Sling Clavicle Adjuster Patent 6415 |
| 1951 GEORGE Violin E String Adjuster Patent |
| 1923 ADREON ROBERT Slack Adjuster Patent Print |
| 1932 CAMP Automatic Slack Adjuster Patent Print |
| 1993 FELKINS Design Stirrup Adjuster Patent 37063 |
| 1997 FELKINS Design Stirrup Adjuster Patent 37092 |
| 1933 CAMP Automatic Slack Adjuster Patent Print |
| 1926 DE Slack Adjuster For Air Brakes Patent |
| 1938 JAMES JR Slack Adjuster Patent Print Art |
| 1922 CARL Lid Adjuster And Support Patent Print |
| 1951 MARTIN Railroad Brake Slack Adjuster Patent |
| 1930 HANCOCK MILTON Slack Adjuster Patent Print |