发明授权
US06377755B1 Thermally protective camera case 失效
保温相机外壳

Thermally protective camera case
摘要:
The invention relates to an article comprising photographic silver halide film substantially surrounded by a container comprising a phase change material, wherein said container will maintain said film at a temperature of below 130° F.(55° C.) when said container is repeatedly cycled over a 24-hour period reaching 180° F.(82° C.) for four hours.
信息查询
0/0