The answer is: Modified Union
An open shop is a business that does not require union membership to be an employee.
A modified union
A union closed shop is a workplace in which only union workers are allowed and to work and an open shop allows non union workers
This question needs to be rewritten. I can think of union terms for "open/closed" shops, but I am not sure this is what you want.
The agency-shop policy allows both union and nonunion workers to be employed by an organization, but the nonunion employees must pay a union fee equal to union dues.
Yes, Ford workers are part of the United auto workers union. This union ensures the workers have rights.
Workers' Union ended in 1929.
The union workers credit services provides loans to the union workers who pay later at a given interest.
Federal workers do have a union. They filed a law suit for federal workers not being paid overtime. But the union is voluntary.
workers union
Technically there are no union mining companies, only union miners working for mine companies. Within an individual company that owns several mines there may have both union and non-union workers because each particular mine in that company has the opportunity to join the union or choose not to - it's based on the mine workers' preference not the company's. Hobet's largest mine in Boone County, West Virginia is a union mine, and to the best of my knowledge all of Hobet's mines employ union workers.
Workers' Union was created in 1898.