Cited in | Search | Type: | Patent literature | Publication No.: | US2904015
[A] (PENNING DOUGLAS E) [A] 1-3 * figures 1-3 *; | Type: | Patent literature | Publication No.: | US4160009
[A] (HAMABE KO HEI) [A] 1-3 * figure 3 * | Cited in | by applicant | Type: | Patent literature | Publication No.: | US5022226
| Type: | Patent literature | Publication No.: | KR0164291B
| Type: | Patent literature | Publication No.: | KR19980051022
|