Printing:
Method for multi-color printing with but one impression; method for printing sheet metals; substitute for printing blocks.* (*NOTE: Must be light in weight, and non-inflammable.) Substitute for lithographic stone; a firm, black, copying, printing ink; method for photographing in colors.
Agricultural.
Machine for harvesting sugar cane; substitute for cotton bale tie; method or machine for exterminating caterpillars; method or machine for exterminating mosquitoes; improvements or new devices for use of farmers, agriculturalists, truckmen, florists, and similar vocations; method or machine for annihilating flies.
General.
Substitute for rubber fire hose; method for profitable utilization of saw dust; substitute for hair pin, or one that will not fall out; envelope that cannot be opened.
WHAT NOT TO INVENT.
- Non-refillable bottles.
- Nut locks.
- Metal railway ties.
- Railroad rail joints.
- Patent medicines.
- Car couplers.
- Hooks and eyes.
- Safety pins.
- Hair curlers.
- Washing Compounds.
- Trolley pole catchers.
- Bending machines, unless absolutely new idea, and style.
- Adding machines, unless absolutely new idea and style.
- Present style typewriters.
- Turbine engines, unless absolutely new idea, and style.
- Submarine boats.
Our reason for advising inventors to stay away from the above classes is on account of the fact of the killing competition in these classes, and the additional fact that the field is absolutely overcrowded. The attorneys that have applied for the hosts of patents for inventors in these lines have "rung all possible changes" in their claims for patents into which it is possible to twist and turn the English language.
Wants Fulfilled.