Patent ID: 11939138
Assignee: nan
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 2:
3. The tissue box of claim 2 wherein the width and length of said front surface, rear surface, left end surface, right end surface, top surface, and bottom surface are formed to satisfy the following equation:

e=a+c 

b=f/2

d1=c 

Wherein “e” is the height of the front surface and the rear surface, “a” is the length (or height) of the top surface top surface left and right end and “c” is the length (height) of the bottom surface left and right end; “f” is the width of the top surface and the bottom surface, “b” is the length of the front surface left and right end; “d1” is the distance from the vertical perforation line of the bottom surface and to the lock key.