| 1599336 | Golf club | September, 1926 | Lindgren | 273/80.1 |
| 1657972 | Golf club | January, 1928 | Rowe | 273/80.1 |
| 2336405 | Golf club | December, 1943 | Kent | 273/79 |
| 2932515 | Adjustable putter | April, 1960 | May | 273/80.1 |
| 3096982 | Adjustable golf club | July, 1963 | Bassin | 273/80.1 |
| 3214170 | Adjustable golf club | October, 1965 | Warnock | 273/80.1 |
| 3430957 | LOCKABLE GOLF CLUB HEAD ADJUSTMENT | March, 1969 | Andis | 273/80.1 |
| 3966210 | Golf club | June, 1976 | Rozmus | 273/169 |
| 3989257 | Golf putter | November, 1976 | Barr | 273/175 |
| 4174108 | Adjustable golf putter | November, 1979 | Reinholz | 273/79 |
| 4253667 | Golf ball putter | March, 1981 | Clark et al. | 273/168 |
| 4741535 | Golf putter | May, 1988 | Leonhardt | 273/164 |
| 4756535 | Golf putter | July, 1988 | Bradley | 273/183 |
| 4778180 | Golf club | October, 1988 | Guenther | 273/79 |
FIG. 1 is a pictorial view showing the upper and front ball-striking surface of the club head;
FIG. 2 is a pictorial view of the upper and rear surfaces of the club head;
FIG. 3 is a top view of the club head;
FIG. 4 is a front view on line 4--4 of FIG. 3;
FIG. 5 is a rear view on line 5--5 of FIG. 3;
FIG. 6 is a side view on line 6--6 of FIG. 3;
FIG. 7 is a side view on line 7--7 of FIG. 3; and,
FIG. 8 is a bottom view of the club head.