| 3871372 | Combination ear plug and ear plug retainer | March, 1975 | Bivins | 128/152 |
| 3259128 | Ear protector from noise and dirt | July, 1966 | Leight | 128/152 |
| D195322 | N/A | May, 1963 | Hill | D83/1J |
| 2393005 | Ear protector | January, 1946 | Veneklasen | 128/152 |
| 0955276 | N/A | April, 1910 | Lopizich | D83/1J |
| DD456207 | July, 1928 | 128/152 |
FIG. 1 shows a side elevational view of my new design of the ear protection plug set, wherein one of the ear protection plugs is shown withdrawn from its retaining socket.
FIG. 2 is a side elevational view of one of the ear protection plugs shown in FIG. 1.
FIG. 3 is a bottom plan view of the ear protection plug in FIG. 2.
FIG. 4 is a top plan view of the ear protection plug in FIG. 2.
FIG. 5 is a fragmentary cross-sectional view taken along the line 5--5 in FIG. 4.
FIG. 6 is a fragmentary side elevation of one of the retaining sockets and the connecting cord shown in FIG. 1.
FIG. 7 is a fragmentary bottom plan view of the socket and connecting cord shown in FIG. 6.
FIG. 8 is a fragmentary top plan view of the socket and connecting cord shown in FIG. 6.
FIG. 9 is a cross-sectional view taken along the line 9--9 in FIG. 8.