diff --git a/__init__.py b/__init__.py
index 300ff1d..967c857 100644
--- a/__init__.py
+++ b/__init__.py
@@ -1,6 +1,6 @@
 from trytond.pool import Pool
 from . import product
-from . import machine
+
 
 __all__ = ['register']
 
@@ -9,7 +9,3 @@ def register():
     Pool.register(
         product.Product,
         module='optical_equipment', type_='model')
-    Pool.register(
-        module='optical_equipment', type_='wizard')
-    Pool.register(
-        module='optical_equipment', type_='report')
diff --git a/product.py b/product.py
index 7758136..f303974 100644
--- a/product.py
+++ b/product.py
@@ -1,17 +1,19 @@
+#This file is part of Tryton.  The COPYRIGHT file at the top level of
+#txhis repository contains the full copyright notices and license terms
+
 from trytond.pool  import Pool, PoolMeta
-from trytond.model import ModelView, ModelSql
+from trytond.model import ModelView, ModelSQL
 from trytond.model import fields
 
-__all__ = [Product]
+__all__ = ['Product']
 
 _RISK = [(None, '')]
 _USE = [(None, '')]
 _BIOMEDICAL_CLASS = [(None, '')]
 _MAIN_TECNOLOGY = [(None, '')]
 
-class Product(metaclass=PoolMeta):
+class Product(ModelSQL, ModelView, metaclass=PoolMeta):
     'Product'
-    
     __name__ = 'product.template'
 
     machine = fields.Boolean('It is machine')
diff --git a/tryton.cfg b/tryton.cfg
index 7dd7e04..0d5c9de 100644
--- a/tryton.cfg
+++ b/tryton.cfg
@@ -3,4 +3,6 @@ version=6.0
 depends:
     ir
     product
+    country
 xml:
+    product.xml
\ No newline at end of file