| 发明名称 |
Loud-speaker |
| 摘要 |
|
| 申请公布号 |
US1764015(A) |
申请公布日期 |
1930.06.17 |
| 申请号 |
US19280290300 |
申请日期 |
1928.07.05 |
| 申请人 |
GOODYEAR ADOLPH O |
发明人 |
GOODYEAR ADOLPH O. |
| 分类号 |
H04R7/04 |
主分类号 |
H04R7/04 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
|
| 地址 |
|
您可能感兴趣的专利
CONSTRUCTION MACHINE
SHEET SUPPLY DEVICE AND IMAGE FORMING APPARATUS
CONTACTOR
AGRICULTURE SUPPORT SYSTEM
ELECTRODE MATERIAL, POWER STORAGE MATERIAL INCLUDING ELECTRODE MATERIAL, AND METHOD OF PRODUCING ELECTRODE MATERIAL
MEMBRANE ELECTRODE ASSEMBLY FOR FUEL CELL
METHOD FOR PRODUCING BUTADIENE AND/OR 3-BUTENE-2-OL
階段構造の電池セル
COMMUNICATION DEVICE, COMMUNICATION METHOD AND COMMUNICATION PROGRAM
IMAGE ADJUSTING DEVICE, IMAGE FORMATION DEVICE, AND IMAGE ADJUSTING METHOD
HEAT EXCHANGER FOR AIR CONDITIONING EQUIPMENT
IMAGE FORMATION DEVICE
SHEET GLASS MOLDING, PRODUCTION METHOD OF SHEET GLASS MOLDING, PRODUCTION DEVICE OF SHEET GLASS, AND PRODUCTION METHOD OF SHEET GLASS
COMPLEX COMPOSED OF NEURON HAVING ENGRAFTMENT CAPABILITY FOLLOWING TRANSPLANTATION AND SOLID THREE-DIMENSIONAL MATRIX
VIBRATION WAVE MOTOR AND OPTICAL EQUIPMENT
PROJECTION TYPE DISPLAY DEVICE
PROJECTOR AND CONTROL METHOD OF PROJECTOR
PROJECTION ZOOM LENS AND IMAGE DISPLAY DEVICE
POLARIZATION SEPARATION ELEMENT, ILLUMINATION DEVICE, AND PROJECTOR
COPPER ALLOY SHEET EXCELLENT IN CONDUCTIVITY AND BENDING DEFLECTION COEFFICIENT
